Seeds for the Garden 123 
New Jersey Expt. Sta. 
Fic. 74. Result of crossing summer squashes with the field pumpkin. The 
large cream-colored, pear-shaped fruits in the center of the upper row and 
the somewhat flattened white or yellow-colored fruits in the bottom row 
are offspring of a cross between the white scallop and the field pumpkin. 
The large, elongated, warty fruits in the center row were obtained from 
among the offspring of a warty “jug” fruit (itself a hybrid) crossed with the 
field pumpkin. 
sary. What he does depends on the kind of flowers 
borne by the plants. 
The plants that grow from the seeds produced in this 
way are hybrids, or cross-breeds. In some cases (for 
example, in peas and corn) the cross-bred seeds them- 
selves may show that they are hybrids, but for the study 
of characters like the shape of leaves and the size and 
color of the fruit, the hybrid plants within the seeds 
must be grown to maturity. 
Usually the first generation of hybrids between two 
stocks that are not themselves hybrids are all very much 
alike. They may resemble one parent in one way and 
the other parent in another way. In general appearance 
they often seem to be a blend of the two parents. 
_ When the plant breeder saves seed from some of theSe 
first-generation hybrid plants, and raises the second 
hybrid generation, this generation of plants usually 
shows wide variations. Among these the plant breeder 
